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HSChapter 29
U.S. imports of cyclanic, cyclenic & cycloterpenic ketones without other oxygen function (nesoi) (HS 291429) totaled $13.9M in July 2026, traded with 24 countries.
Importers of Cyclanic, Cyclenic & Cycloterpenic Ketones Without Other Oxygen Function (NESOI) paid $1.7M in duties in July 2026 — an effective duty rate of 17% on $10.2M in dutiable value, based on actual customs collections rather than the published tariff schedule.
Last updated: July 2026 dataThis residual heading for cyclic ketones without additional oxygen functions spans commercially distinct compounds including isophorone (2914291000), natural camphor (2914293000), synthetic camphor (2914293100), camphor (2-camphanone) (2914293200), and other cyclic ketones (2914295000 and 2914299000). India leads US imports across this heading, reflecting its significant camphor and isophorone production capacity. Isophorone is a high-value solvent for coatings and a building block for isophorone diisocyanate (IPDI), while camphor has pharmaceutical, cosmetic, and industrial uses — making the specific tariff line selection critical for accurate duty and trade-remedy assessment.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
293 shipments/mo
The US tariff schedule enumerates them separately: natural camphor at 2914293000 and synthetic camphor at 2914293100, with camphor (2-camphanone) at 2914293200. Natural camphor is derived from Cinnamomum camphora trees, while synthetic camphor is produced from turpentine-derived pinene. A certificate of origin and production method documentation may be required to support the correct line.
Isophorone (2914291000) is primarily consumed as a high-boiling solvent in industrial coatings, printing inks, and leather finishes, and as a chemical intermediate for isophorone diisocyanate (IPDI) used in polyurethane production. Its relatively low volatility and strong solvency make it preferred in applications where slower evaporation is needed.
Supplier Network
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HS10 import codes under this HS6 parent, each with its own page. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Import Value | Effective Tariff % | Dutiable Share | Duty Collected |
|---|---|---|---|---|---|
| 2914295000 | Other Cyclanic, Etc Ketones Without Oth Oxy Funct | $13.2M | 12.24% | 72.24% | $1.6M |
| 2914293100 | Synthetic Camphor | $498K | 11.88% | 92.34% | $59K |
| 2914291000 | Isophorone | $141K | 10.76% | 100.00% | $15K |
| 2914293000 | Natural Camphor | $103K | 10.00% | 100.00% | $10K |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 2914299000 | Cyclanic, Etc Ketones Without Other Oxy Func NESOI | $3.9M |
| 2914293200 | Camphor (2-Camphanone) | $29K |
Import lines come from the U.S. Harmonized Tariff Schedule and export lines from Schedule B. The two are numbered by different agencies, so the same 10-digit code can appear in both tables describing a different product.
ImportsExports
Imports
$13.9MYoY · Pro
Exports
$3.9MYoY · Pro
12-mo low · imports
YoY · ProThrough July 2026. Source: U.S. Census Bureau.
Imports · July 2026
origin
India and Israel together supply 45% of it.
customs district
destination
entry
rate provision · imports
4.5% enters free of duty; the effective duty rate is 12.20%.